CVE-2026-4680CWE-416

Use after free in FedCM in Google Chrome prior to 146.0.7680.165 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page

High · published March 24, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
36.1
In the wild
Unconfirmed
What it is

Use after free in FedCM in Google Chrome prior to 146.0.7680.165 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00429 · 36.1th percentile
Weakness
CWE-416 · Use After Free
Published
2026-03-24T00:24Z
EPSS history
Timeline
  • 24 MAR 00:24Z
    Use after free in FedCM in Google Chrome prior to 146.0.7680.165 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page
    cvelistv5